Detection of photon by pairing avalanche photodiodes with different threshold voltages
US11619545B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 11, 2018 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | Aug 9, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F77/95
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A photon detection device having a high light detection efficiency. The photon detection device includes a first light reception part which receives a gate signal and outputs a first signal; a second light reception part which receives a gate signal and outputs a second signal; and a determination part which determines whether or not a photon is received, on the basis of the first signal from the first light reception part and the second signal from the second light reception part. The photon is incident on the first light reception part among the first light reception part and the second light reception part, and the breakdown voltage of the second light reception part is higher than the breakdown voltage of the first light reception part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.